A synthetic triphenylmethane dye that imparts a bright blue to bluish-green colour. It is predominantly utilized as a vibrant colorant in food and beverage products, as well as in specific pharmaceutical and diagnostic medical applications.

Full specification

Molecular formula
C27H31N2NaO7S2
Grades
food
Packaging
10 kg fibre drum · 25 kg fibre drum
Appearance
Dark blue or violet to reddish-blue fine powder
Synonyms
E131 · CI 42051 · 3536-49-0 · Acid Blue 3 · Food Blue 5

Compliance & regulatory

Region: EU — Chemotto S.r.l., Milano

  • REACH-aligned supply
  • CLP-labelled
  • Cosmetics Regulation 1223/2009

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